专利名称：METHOD FOR THE HETEROGENEOUSLY
CATALYSED PARTIAL GAS PHASEOXIDATION OF PROPENE TO FORMACRYLIC ACID
发明人：PETZOLDT, JOCHEN,DIETERLE,
MARTIN,ARNOLD, HEIKO,RUPPEL,WILHELM,MUELLER-ENGEL, KLAUS-JOACHIM
申请号：EP04722160.1申请日：20040320公开号：EP1611077B1公开日：20080319
摘要：The invention relates to a method for the heterogeneously catalysed partialgas phase oxidation of propene to form acrylic acid. According to said method, the initialmixture of reaction gas containing propene is oxidised, in a first reaction step, on a fixed-bed catalyst bed (1) consisting of a plurality of fixed-bed catalyst bed zones andarranged in two successive temperature zones A and B. The acrolein-containing productgas mixture of the first reaction step is then oxidised, in a second reaction step, on afixed-bed catalyst bed (2) consisting of a plurality of fixed-bed catalyst bed zones andarranged in two successive temperature zones C and D. The transition from onetemperature zone to another temperature zone does not spatially coincide with atransition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zonewithin a reaction step.
申请人：BASF SE,BASF SE,BASF SE
地址：DE
国籍：DE
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